<!DOCTYPE html>
<html lang="ch-zn">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="./node_modules/bootstrap/dist/css/bootstrap.min.css">
    <link rel="stylesheet" href="./node_modules/bootstrap-icons/font/bootstrap-icons.css">
    <title>图书管理系统</title>
    <script src="./node_modules/bootstrap/dist/js/bootstrap.bundle.js"></script>
    <style>
        * {
            user-select: none;
        }
    </style>
</head>

<body>
    <div class="container">
        <nav class="navbar navbar-expand-lg bg-body-tertiary">
            <div class="container-fluid">
                <a class="navbar-brand" href="./index.html">图书管理系统</a>
                <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
                <span class="navbar-toggler-icon"></span>
                </button>
                <div class="collapse navbar-collapse" id="navbarSupportedContent">
                    <ul class="navbar-nav me-auto mb-2 mb-lg-0">
                        <li class="nav-item dropdown">
                            <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">图书管理</a>
                            <ul class="dropdown-menu">
                                <li><a class="dropdown-item" href="./bookquery.html">图书查询</a></li>
                                <li><a class="dropdown-item" href="./bookchange.html">图书更改</a></li>
                            </ul>
                        </li>
                        <li class="nav-item dropdown">
                            <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">学生入口</a>
                            <ul class="dropdown-menu">
                                <li><a class="dropdown-item" href="./signup.html">新生注册</a></li>
                                <li>
                                    <hr class="dropdown-divider">
                                </li>
                                <li><a class="dropdown-item" href="./borrowbook.html">我要借书</a></li>
                                <li><a class="dropdown-item" href="./returnbook.html">我要还书</a></li>
                            </ul>
                        </li>
                    </ul>
                    <form class="d-flex" role="search">
                        <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
                        <button class="btn btn-outline-success" type="submit">Search</button>
                    </form>
                </div>

            </div>
        </nav>
        <br/><br/>
        <div class="row">
            <div class="col "></div>
            <div class="col-8 ">
                <i class="bi bi-book " style="font-size: 1000%;display: flex;justify-content: center "></i></div>
            <div class="col "></div>
        </div>
        <div class="jumbotron ">
            <h1 class="display-4 " style="text-align: center;margin: 5px; ">欢迎来到图书管理系统</h1>
        </div>
    </div>
</body>
<script>
</script>

</html>